Product Name: Black Plating Manual Knurling High Platform High Head Screws Big Head Screws Step Screws Small Head Bolts Material:Low Carbon Steel Size:M1.6 Length:3mm~10mm Notes: The real colour of the item could also be slightly varied from the pictures proven on web page brought on by many factors akin to brightness of your computer screen and light-weight brightness. The size, color, printing be aware ,etc is subjectde to the genuine product. If the above hyperlink doesn't have the product that you simply want, please consult us and customize. Package Including: According to your desire ,Other equipment usually are not included. (We hope that our sincere service, might help you, your confirmation is our energy of progress.